/**
 *    Copyright (C) 2008, 2009  Victor Smirnov <aist11@gmail.com>
 *
 *    This program is free software; you can redistribute it and/or modify
 *    it under the terms of the GNU General Public License as published by
 *    the Free Software Foundation; either version 3 of the License, or
 *    (at your option) any later version.
 *
 *    This program is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    GNU General Public License for more details.
 *
 *    You should have received a copy of the GNU General Public License along
 *    with this program; if not, write to the Free Software Foundation, Inc.,
 *    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 *    See LICENSE.exceptions in the root folder of this project for possible
 *    exceptions
 *
 */

#ifndef _CUBEFS_CORE_API_COLLECTIONS_ITERATOR_HPP
#define	_CUBEFS_CORE_API_COLLECTIONS_ITERATOR_HPP

#include <cubefs/api/models/iterator.hpp>
#include <cubefs/core/api/reflection/type.hpp>


namespace cubefs    {
namespace api       {



template <typename Interface>
class IteratorImplT: public TypedImplT<Interface> {
	typedef IteratorImplT<Interface>	Me;
	typedef TypedImplT<Interface>		Base;
public:

    virtual bool Next()             = 0;
    virtual bool Prev()             = 0;

    virtual void Close()            = 0;
    virtual bool IsClonable()       = 0;
    virtual Iterator* Clone()       = 0;
    virtual void GetValue(Typed *holder) = 0;

    virtual bool IsFlag(Int flag)   = 0;

    virtual Model* GetModel()       = 0;

    static void Init()
    {
        AbstractType *type = new AbstractType(TypeNameFactory<Interface>::name(), Typed::MyType());
        type_ = type;

        type->AddOperation(new BasicOperation<bool (Me::*)()>(type, "Next", &Me::Next));
        type->AddOperation(new BasicOperation<bool (Me::*)()>(type, "Prev", &Me::Prev));

        type->AddOperation(new BasicOperation<void (Me::*)()>(type, "Close", &Me::Close));
        type->AddOperation(new BasicOperation<bool (Me::*)()>(type, "IsCloneable", &Me::IsClonable));
        type->AddOperation(new BasicOperation<bool (Me::*)(Int)>(type, "IsFlag", "flag", &Me::IsFlag));
        type->AddOperation(new BasicOperation<void (Me::*)(Typed*)>(type, "GetValue", "holder", &Me::GetValue));

        type->AddOperation(new BasicOperation<Typed* (Me::*)(), Iterator* (Me::*)()>(type, Me::MyType(), "Clone", &Me::Clone));
    }


    CUBEFS_DECLARE_REFLECTION;
};

template <typename Interface>
Type* IteratorImplT<Interface>::type_		= NULL;
typedef IteratorImplT<Iterator>				IteratorImpl;

CUBEFS_DEFINE_PARAMETER_TYPE(Iterator);




template <typename Interface>
class TreeMapIteratorImplT: public IteratorImplT<Interface> {
	typedef TreeMapIteratorImplT<Interface>	Me;
	typedef IteratorImplT<Interface>		Base;

public:
    virtual cubefs::api::Page* GetPage()    = 0;
    virtual Int   GetIndex()                = 0;

    static void Init() {
        AbstractType *type = new AbstractType(TypeNameFactory<Interface>::name(), Iterator::MyType());
        type_ = type;

        type->AddOperation(new BasicOperation<Typed* (Me::*)(), Page* (Me::*)()>(type, PageImpl::MyType(), "GetPage", &Me::GetPage));
        type->AddOperation(new BasicOperation<Int (Me::*)()>(type, "GetIndex", &Me::GetIndex));
    }

    CUBEFS_DECLARE_REFLECTION;
};

template <typename Interface>
Type* TreeMapIteratorImplT<Interface>::type_	= NULL;
typedef TreeMapIteratorImplT<TreeMapIterator>	TreeMapIteratorImpl;

CUBEFS_DEFINE_PARAMETER_TYPE(TreeMapIterator);



template <typename Interface>
class IdxMapIteratorImplT: public TreeMapIteratorImplT<Interface> {
	typedef IdxMapIteratorImplT<Interface>	Me;
	typedef TreeMapIteratorImplT<Interface>	Base;

public:
    virtual BigInt GetBase(Int i)           = 0;

    static void Init() {
        AbstractType *type = new AbstractType(TypeNameFactory<Interface>::name(), TreeMapIterator::MyType());
        type_ = type;
        type->AddOperation(new BasicOperation<BigInt (Me::*)(Int)>(type, "GetBase", "i", &Me::GetBase));
    }

    CUBEFS_DECLARE_REFLECTION;
};

template <typename Interface>
Type* IdxMapIteratorImplT<Interface>::type_		= NULL;
typedef IdxMapIteratorImplT<TreeMapIterator>	IdxMapIteratorImpl;

CUBEFS_DEFINE_PARAMETER_TYPE(IdxMapIterator);


}
}

#endif
